national security correspondent jennifer griffin tells us what the u.s. is selling. it would be the largest arms deal in u.s. history. 60 billion dollars in military aircraft to saudi arabia's air force over the next ten years. the pentagon officials say the deal would include 84 f-15 fighter jets. 70 apache helicopters, 72 blackhawks and 60 little birds followed by a 30 billion dollar package to improve saudi's naval defenses. if congress approves the sale. it's designed to send a signal to neighboring iran, whose march toward nuclear weapons is of growing concern to its arab neighbors. >> every message that the u.s. sends is being heard loud and clear in iran and certainly any sign that the u.s. and saudi arabia are deepening their defense relationships, certainly any sign that saudi arabia will have a stronger deterrent force, i think, enters into the calculations of the iraniaeye rain. >> reporter: there could be a political component. boeing argues the sale could support up to 77,000 jobs in 44 states. the u.s. doesn't buy f-15's anymore and the line was slated